Mitsubishi Outlander XL. Manual - part 661

STEP 2. Diagnostic trouble code recheck after resetting
CAN bus lines

Q:Is DTC C1032 set?

YES:

 Go to Step 3.

NO:

 The procedure is complete.

STEP 3. M.U.T.-III diagnostic trouble code
Check that the diagnostic trouble code C102B is also set.

Q:Is DTC C102B also set?

YES:

 Perform the diagnosis for the diagnostic trouble

code No. C102B. (Refer to P.35C-28.)

NO:

 Go to Step 4.

STEP 4. Check for wheel speed sensor installation
Check  how  the  wheel  speed  sensor  <RR>  is  installed
(Disconnection  of  wheel  speed  sensor,  loose  mounting  bolt,
etc.).

Q:Is the check result normal?

YES:

 Go to Step 5.

NO:

 Reinstall the wheel speed sensor correctly.

STEP 5. Check for wheel speed sensor as a single unit

Q:Is the check result normal?

YES:

 Go to Step 6.

NO:

 Replace the wheel speed sensor.

STEP 6. Check for wheel bearing looseness

NOTE: 

Loose wheel bearing may increase the gap between the

wheel speed sensor and the wheel speed detection magnet
encoder. Check the wheel bearing <RR> for looseness. <Refer
to GROUP 27A - On-vehicle Service P.27A-4.(FWD) or GROUP 27B
- On-vehicle Service P.27B-15.(AWD)>

Q:Is the check result normal?

YES:

 Go to Step 7.

NO:

 Replace the rear wheel hub assembly.

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-51

DIAGNOSIS

STEP 7. Check of wheel speed detection encoder

ZC601558 0000

Magnetic 
encoder

Rear hub 
assembly

Rear wheel bearing

Ball bearing

Rear hub 
assembly

Magnetic 
encoder

<FWD>

<AWD>

Check  the  encoder  for  adhesion  of  foreign  materials  or
deformation.

Q:Is the check result normal?

YES:

 Go to Step 8.

NO:

 Remove the foreign materials and clean the encoder

so as not to disturb the magnetization pattern on it while
taking care of the magnet, magnetic substance, and
magnetic attraction. When the encoder is deformed,
replace the rear hub assembly.

STEP 8. Voltage measurement at the A-02 ASC-ECU
connector

ZC601293 0006

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU 
harness connector

(1)

Disconnect  the  ASC-ECU  connector,  connect  special  tool
MB991997 to the harness-side connector, and then measure
the resistance at special tool connector side.

NOTE: 

Do not connect the special tool MB991997 to ASC-

ECU.

(2)

Turn the ignition switch to the ON position.

(3)

Measure the voltage between the wheel speed sensor power
supply terminal (signal terminal) No. 43/the ground terminal
No. 42 and the body ground.

OK: 0 volt

Q:Is the check result normal?

YES:

 Go to Step 9.

NO (Not normal at terminal No. 43 or 42):

 Go to Step 10.

35C-52

ACTIVE SKID CONTROL SYSTEM (ASC)

DIAGNOSIS

STEP 9. Resistance measurement at A-02 ASC-ECU
connector

ZC601293 0007

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU 
harness connector

(1)

Disconnect  the  ASC-ECU  connector,  connect  special  tool
MB991997 to the harness-side connector, and then measure
the resistance at special tool connector side.

NOTE: 

Do not connect the special tool MB991997 to ASC-

ECU.

(2)

Resistance between the wheel speed sensor power supply
terminal (signal terminal) No. 43/the ground terminal No. 42
and the body ground

OK: No continuity

Q:Is the check result normal?

YES:

 Go to Step 11.

NO (Not normal at terminal No. 43 or 42):

 Go to Step 10.

STEP 10. Connector check: A-02 ASC-ECU connector,
C-125 intermediate connector, D-133 wheel speed sensor
<RR> connector

Q:Is the check result normal?

YES:

 The short circuit in the wheel speed sensor <RR>

circuit may be present. Repair the wiring harness between
the A-02 ASC-ECU connector terminal No. 43/42 and the
D-133 wheel speed sensor <RR> connector terminal No. 1/2.

NO:

 Repair the defective connector.

ACTIVE SKID CONTROL SYSTEM (ASC)

35C-53

DIAGNOSIS

STEP 11. Voltage measurement at the A-02 ASC-ECU
connector

ZC601292 0004

ASC-ECU

MB991997

Check harness

A-02 ASC-ECU 
harness connector

(1)

Disconnect  the  ASC-ECU  connector,  connect  special  tool
MB991997  to  the  ASC-ECU-side  connector  and  harness-
side connector, and then measure the voltage at the special
tool connector side.

(2)

Turn the ignition switch to the ON position.

(3)

Measure the voltage between the wheel speed sensor circuit
power supply terminal (signal terminal) No. 43 and the body
ground.

OK: Approximately battery voltage

Q:Is the check result normal?

YES:

 Go to Step 14.

NO:

 Go to Step 12.

STEP 12. Connector check: A-02 ASC-ECU connector,
C-125 intermediate connector, D-133 wheel speed sensor
<RR> connector

Q:Is the check result normal?

YES:

 Go to Step 13.

NO:

 Repair the defective connector.

STEP 13. Wiring harness check between A-02 ASC-ECU
connector terminal No. 43/42 and D-133 wheel speed sensor
<RR> connector terminal No. 1/2

｠

Check for open circuit in wheel speed sensor <RR> circuit

Q:Is the check result normal?

YES:

 Replace the wheel speed sensor.

NO:

 Repair the wiring harness.

STEP 14. Check whether the diagnostic trouble code is
reset.

(1)

Erase the diagnostic trouble code.

(2)

Drive the vehicle at 12mph (20 km/h) or more.

NOTE: 

The ABS warning light does not turn OFF in some

cases unless the vehicle runs at 12mph (20 km/h) or
higher.

Q:Is DTC C1032 set?

YES:

 Replace the ASC-ECU.

NO:

 Intermittent malfunction (Refer to GROUP 00 - How to

Cope with Intermittent Malfunction P.00-15).

35C-54

ACTIVE SKID CONTROL SYSTEM (ASC)

DIAGNOSIS